[Digikam-devel] Re: Weird error message

[Michael G. Hansen]

On 04/10/2011 06:06 PM, Andi Clemens wrote:
> Hi all,
>
> I get this error message whenever I start digiKam:
> KGlobal::locale::Warning your global KLocale is being recreated with a
> valid main component instead of a fake component, this usually means you
> tried to call i18n related functions before your main component was
> created. You should not do that since it most likely will not work
>
> Do you see this, too?

I think I found the causes for this problem, or at least some of them, 
by intercepting calls to i18n, see valgrind log below. One example is 
this line:

http://lxr.kde.org/source/extragear/graphics/digikam/utilities/advancedrename/parser/options/dateoption.cpp#46

static const QString dateFormatLinkDescr = i18nc("date format settings", 
"format settings");

Here, we should use ki18nc instead, but the string is used in the next line:

static const QString dateFormatLink =
     QString("<a 
href='http://doc.trolltech.com/latest/qdatetime.html#toString'>%1</a>").arg(dateFormatLinkDescr);

So I think we have to move it to some place which will be called after 
the creation of KApplication.

Michael

(sid-kde-46)mike at operator:/c/temp/kdebuild/digikam-sc$ valgrind 
--tool=memcheck ./core/tests/advancedrenametest
==27142== Memcheck, a memory error detector
==27142== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==27142== Using Valgrind-3.6.0.SVN-Debian and LibVEX; rerun with -h for 
copyright info
==27142== Command: ./core/tests/advancedrenametest
==27142==
**27142** 802   at 0x6E97D92: VALGRIND_PRINTF_BACKTRACE(char const*, 
...) (valgrind.h:4233)
==27142==    by 0x6E99708: i18nc(char const*, char const*) 
(klocalizedstring.h:802)
==27142==    by 0x70641F7: 
__static_initialization_and_destruction_0(int, int) 
(imageguidewidget.cpp:54)
==27142==    by 0x7102555: ??? (in 
/c/temp/kdebuild/digikam-sc/lib/libdigikamcore.so.2.0.0)
==27142==    by 0x6E47332: ??? (in 
/c/temp/kdebuild/digikam-sc/lib/libdigikamcore.so.2.0.0)
unnamed app(27142)/digikam (core) i18nc: 
/usr/local/include/klocalizedstring.h 802
**27142** 802   at 0x6E97D92: VALGRIND_PRINTF_BACKTRACE(char const*, 
...) (valgrind.h:4233)
==27142==    by 0x6E99708: i18nc(char const*, char const*) 
(klocalizedstring.h:802)
==27142==    by 0x706422E: 
__static_initialization_and_destruction_0(int, int) 
(imageguidewidget.cpp:55)
==27142==    by 0x7102555: ??? (in 
/c/temp/kdebuild/digikam-sc/lib/libdigikamcore.so.2.0.0)
==27142==    by 0x6E47332: ??? (in 
/c/temp/kdebuild/digikam-sc/lib/libdigikamcore.so.2.0.0)
unnamed app(27142)/digikam (core) i18nc: 
/usr/local/include/klocalizedstring.h 802
**27142** 802   at 0x423460: VALGRIND_PRINTF_BACKTRACE(char const*, ...) 
(valgrind.h:4233)
==27142==    by 0x424656: i18nc(char const*, char const*) 
(klocalizedstring.h:802)
==27142==    by 0x4314F6: __static_initialization_and_destruction_0(int, 
int) (dateoption.cpp:46)
==27142==    by 0x44CD85: ??? (in 
/c/temp/kdebuild/digikam-sc/core/tests/advancedrenametest)
==27142==    by 0x4133C2: ??? (in 
/c/temp/kdebuild/digikam-sc/core/tests/advancedrenametest)
==27142==    by 0x7FF00047F: ???
==27142==    by 0x44CD14: __libc_csu_init (in 
/c/temp/kdebuild/digikam-sc/core/tests/advancedrenametest)
==27142==    by 0x91EEBDF: (below main) (libc-start.c:187)
unnamed app(27142)/digikam (core) i18nc: 
/usr/local/include/klocalizedstring.h 802
KGlobal::locale::Warning your global KLocale is being recreated with a 
valid main component instead of a fake component, this usually means you 
tried to call i18n related functions before your main component was 
created. You should not do that since it most likely will not work